Albert j



Feb. 11, `1930. A. J. HAzLE, .1R`

FEEDING DEVICE WITH CLEARING MECHANISM Filed Aug. 26, '192 5r Ziggy/y U5.,

liquids, such as molasses, such feeders being following description made in connection 60 j 2o material tendsto pack in this space and adthesection illustrated in Figi; 70

" 30 move this frictionandresistance in the mamembers 12 have central hubs secured to the `80 Patented Feb. 11.1930 i j 1,746,590

UNITED STATES PATENT oFFlcE .ALBER'IJ. HAZLE,` JR., 0F CHICAGO,` ILLINOIS, ASSIGNOR TO B. '.E. GUM? CO., OF l Y CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS FEEDING DEVICE WITH CLEARING MEGIIAIIISM Applicationl filed August 26, 1929. Serial No. 388,435.

This invention relates to a feeding device therein which member has a disk-like sur- I vand while the same is applicable to various face moving adjacent the wall of the casing, kinds of feeding devices for mills, it particusaid surface having formed thereon means larly is designed for use in a feeding device for engaging the wall andadapted tocut or adapted to feed comminuted or liquid matescrape the material therefrom, which means 55 rial comprising a casing and feeding mempreferably are in the form of spaced ribsori- Vloer movable therein. Thesefeeding devices blades projecting from said feeding member. are now used in large numbers in flour mills These and other objects and advantages and feed mills and also for feeding ,thick of the invention will be fully set forth in the commonly used where it isdesired to mix with the'accompanying drawings, in which yseveral ingredients. One Well known type of like reference characters refer to similar such a feeder is that illustrated in Patent No. parts .throughout the several views, and in 1,435,822 granted on N ov. 14th,`1922 to Emil which Y R. Draver on percentage feeder. In suoli a Fig. l is a view in longitudinal vertical sec- 65 feeding device the feeding member moves tion of a machine such as illustrated in the close to the side wall of the casing and mate patent above identified;

rial finds its way into the narrow space be- Fig. 2 is a vertical section through a portween the feeding member and casing. This tion of the machine taken at right angles to here to the casing wall. In Afeeding some Fig. 3 is a view in side elevation of the materials which are semi-liquid and sticky feeding member, and

j great friction and resistance would be caused Fig; 4 is ahorizontal section taken on line by the material fwhich lis thus accumulated` d-t of Fig. 3 as indicated by the arrows.1 between the feeding member and Wall. 111 Of the machine shown it will only be neces- 75 'some cases where the feeding machines had sary to consider the casing 10 having side stood over night it would be an extremely 4walls 10a and having the hub bea-rings 10b difficult task to start themthe next day. The which ferm bearings for the shaft 11 which present inventionhas for its object to rccarries the feeding members 12. Feeding chine and eliminate the trouble caused thereshaft 11 by any suitable means such as the by. j set screws 13, said members 12 having out- It is an object of this invention, therefore, wardly extending blades or paddles 12an exto provide a feeding device comprising tending substantially tangentially to said means for clearing away any material which hubs and securedthereto. The ends of the `Sli may accumulate between the feeding member blades terminate in a cylindrical surface.` i `and the wall of the casing. V The feeding member 12 adjacent wall 10a It is a further object of the invention to has a dislr-like end 12b whichmoves adjacent "provide a feeding machine comprising a casthe end wall 10a. Casing 10 has a rod 14 40 ing through which the material is fed and a extending transversely thereof at its upper 90 feeding member therein which feeding memfront corner and a plate 15 Is bent to extend' ber has a surface moving close to the wallof over andbe supported by said rod, said plate the casing, together with means carried by then extending downwardly and rearwardly saidfeeding member moving very close to or and having its other end bent over and exengaging said wall to scrape and cut any tending a short distance downwardly` from 95 materialtherefrom which has accumulated another rod 16 which extends transversely thereon. j. of casing 10. An angle bar 17 is shown as j It is more specifically an object of the in` extending transversely across the top of casvention to provide a"fe'e`ding machine having 10 at its upper forward end. Another ing a casing and a rotating feeding member angle bar 18 extends across the top of casing l0@ 10 some distance from the bar 17 and a plate 19 extends from the bar 18 rearwardly and then curves downwardly forming the rear end of said casing and being secured to an angle bar 20 at its bottom which forms the front bottom portion of the casing. A plate or partition 21 extends vertically from the bottom of casing 10 to the under side of plate 15` some distance in front of rod 16, the space between this plate and wall 19 forming the discharge passage for the feeder. Another plate 22 is disposed in the bottom of said discharge passage and engages the hub nf a swinging valve 23 pivoted on a pivot 15 24 journaled in casing 10. Member 24 has secured to one end an arm 25 pivotally connected at its outer end to a link 26 in turn pivotally connected at its other end to an arm 27 which is secured to a lever shaft 2,8

D by. some suitable means such as a set screw 29. A hand lever 30 is secured to shaft 28 and Vextends upwardly therefrom by means of which through the mechanism described valve 23 can be swung from the full line apposition shown in Fig. 1 to the dotted line position shown therein. An angle iron.31 of curved Ashape is'preferably secured to the inside of the wall 10 extending partially around the feeder member 12 and adap-ted to so keep most of the material from falling into the space between disk 12b and wall 10a. The casing has a shaft 32 extending transversely thereof at its forward portion to which is secured agitator blades 33. Said shaft 32 carries a sprocket 34 over which runs a chain 35 which also runs over a sprocket 36 carried on shaft 11. The feeding member 12 and the other similar members areintermittently rotated by mechanism not shown, but which' is disclosed in said patent, which mechanism is driven by a pulley 37 mounted on a shaft 38 carried in the casing 10. Said mechanism also includes a rock shaft 39 journaled in a bearing 40 secured to the casing 10.

The mechanism so far described is substantially the same as shown in said patent above identified and in itself` forms no part of the present invention.

In accordance with the present invention the ,member 12 has projecting..y outwardly from the disk 12b` at its outer side, ribs or blades 12. While these blades may be.of various shapes incross section and extend in various directions, inthe embodiment .of the invention illustrated theyare shown as substantially rectangular in cross.y section and having a forward, comparatively sharp edge 12'i of substantially right angular shape and the blades are shownl as extending from the central portion. of disk ,121" outwardly ltoward and adjacent its4 outer edgef The blades are also shownasslightly.curved with their convex sides adaptedv to advance ine the rotation of member 12.

In the operation of the device, pulley 37 will be driven by a suitable belt and through the mechanism referred to shaft 11 is given intermittent and partial rotative movements. This member thus intermittently rotates in the direction of the arrow shown in Fig. 1. At the same time the agitator members 33 are rotated by chain 35. The material is placed in the casing at the side above andat the left of the feeding members and falls into the pocket-s between blades 12L and is carried over and discharged at the lower side of the feeding members. It is sometimes desired to divert the material to one side of the discharge passage and the valve 23 is swung for this purpose. In practice it has been foundy that the material will find its way between the outer side of disk 12h and wall 10 and pack in said space and adhere to the wall 10. As above stated this was a very serious objection and it was sometimes almost impossible to start the feeder after it had stood for a period of time. With thepresent invention, as the member 1 2Y revolves the blades 12,c move very close to or'engage the wall 10L` and scrape and cut therefrom any material which adheres thereto. `As the member 12 revolves, this material, which has been cut loose, drops downwardly and passes out with the discharge. The wall 10a is thus kept clean and the material which enters between disk 12b and said wall is continually cleared and the friction and resistance caused by this material is eliminated. The blades 12c scrape against the wall and keep the same in very clean condition. It may be stated that the member 12 shown in Fig. 3 is for the end of the casing 10 opposite to that shown in Figs. 1 and 2.

From the abovev description it is seen that applicant has provided a simple and eliicient mechanism for greatly improving the operation of feeding machines. The same is quite simple and yet constitutes a great advance. The device has been amply demonstrated in actual practice and found to be very successful and eiiicient and isbeing commercially made.

It will, of course, be understood that various changes may be made in the form, details, proportions and arrangement of the parts, without departing from the scope of applicants invention, which, generally stated, consists in avdevice capable of carrying out the objects above set forth, in the novel parts and combinations of parts disclosed and defined in theappended claims.

What is claimed is 1. A feeding device havingvin combination, a casing through which material is fed having a side wall, a feeding member in said casing for moving the material having a surface movable adjacent said wall and means carried. by said surface adapted to substantially engage said wall and cut or scrape mallO ` v discharge portion and having a vertical side j 15 wall, a shaft journaled in said casing and 30 ribs extending outwardly on said surface,

terial therefrom which has collected there- 2; A feeding device having inV combination,

a casing through which material is fed hav- 5 ing a side wall, a rotatable feeding means in said casing having a surface and extending outwardly from the central portion thereof to adjacent the outer edge thereof adapted to move very closely to or engage said wall to clear material which has accumulated between said surface and'wall.

3. A feeding device having in combination,

a casing comprising a hopper portion and extending transversely thereof, a feeding member carried by said shaft having a surface movable adjacent said Wall and spaced means projecting from said surface and extending therealong adapted to move close to or against said wall and clear any material which has entered between said member and wall or adhered to the latter.

4:. The structure set forth in claim 3, said means comprising circumferentially spaced ribs extending outwardly from adjacent the center of said surface toward its outer edge. 5. The structure set forth in claim 3, said means comprising circumferentially spaced said ribs being curved with their convex sides moving forwardly in the rotation of said feeding member.

6. A feeding device having in combination,

a casing through which material is fed having a side wall, a rotatable feeding member in said casing having a surface moving adjacent said wall, ribs extending across said surface having sharp angular edges at their forward sides adapted to clear material from between said member and casing. j In testimony whereof I alx my signature.

ALBERT J. HAZLE, JR. 

